tonymillion/Reachability — pull request #84 by PatrickNLT (2014-12-19 17:08:35+00:00)
Title: Use instancetype keyword to allow subclassing

Using ```(instancetype)``` instead of ```(Reachability *)``` in method declarations helps the compiler when using Reachability subclasses. Subclassing Reachability can be useful when extending its possibilities or adding helper functions.